Caption: Perovskite crystal structure. Perovskite is a mineral form of calcium titanate, with the chemical formula Ca.Ti.O3. The unit cell is centred on the calcium ion (blue, 2+ cation). The other atoms are titanium and oxygen. The pseudocubic crystals crystallize in the orthorhombic system. Physical properties include superconductivity, magneto-resistance, ionic conductivity, and dielectric properties. This makes perovskite of great importance in microelectronics and telecommunications.